In composite system filled with solid and solid liquid phase, rational particle grade improve particles arrangement closer and increase stacking density.
在固液相填充复合体系中，采用合理的颗粒级配可使颗粒排列更加紧密，提高堆积密度。
The porosity gradient of porous aluminium is mostly affected not only by the spontaneous stacking density of granules, but also by the infiltration pressure gradient and solidification sequence.
多孔铝合金的孔隙率梯度主要是由渗流驱动压力梯度与凝固顺序所决定，而颗粒的自然堆积密度影响相对较小。
Apart from the benefits to a terminal generally associated with automating container transport, stacking and retrieval, Gottwald's ASCs offer far improved stacking density and faster working speeds.
高华的自动化堆积起重机不但改善了码头的自动化集装箱运输、堆积及检索效率，还提高了堆积密度，加快了工作进程。
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